Fujifilm X-Pro3 vs Ricoh GR II Comparison

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X-Pro3 image
vs
GR II image
Fujifilm X-Pro3 Ricoh GR II
Megapixels
26.10
16.20
Image resolution
6240 x 4160
4928 x 3264

Sensor

Sensor type
CMOS
CMOS
Sensor size
23.5 x 15.6 mm
23.6 x 15.7 mm
Sensor resolution
6277 x 4157
4929 x 3286
Diagonal
28.21 mm
28.35 mm
Compare sensor size:

Sensor Size

Actual size is set to screen
vs
1:1.01
(ratio)
Fujifilm X-Pro3 Ricoh GR II
Surface area:
366.60 mm² vs 370.52 mm²
Difference: 3.92 mm² (1%)
GR II sensor is slightly bigger than X-Pro3 sensor (only 1% difference).
Note: You are comparing cameras of different generations. There is a 4 year gap between Fujifilm X-Pro3 (2019) and Ricoh GR II (2015). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
3.74 µm
4.79 µm
Difference: 1.05 µm (28%)
Pixel pitch of GR II is ~28% higher than X-Pro3's.
Pixel area
13.99 µm²
22.94 µm²
Relative pixel sizes:
vs
Pixel area difference: 8.95 µm² (64%)
Pixel on Ricoh GR II sensor is ~64% bigger than Fujifilm X-Pro3's.
Pixel density
7.13 MP/cm²
4.36 MP/cm²
Difference: 2.77 µm (64%)
Fujifilm X-Pro3 has ~64% higher pixel density than Ricoh GR II's.

Specs

Fujifilm X-Pro3
Ricoh GR II
Crop factor
1.53
1.53
Total megapixels
n/a
16.90
Optical zoom
 
1x
Digital zoom
n/a
ISO range
Auto, 160-12800 (extendable to 80-51200)
Auto, 100-25600
RAW support
Manual focus
Focus range
n/a
30 cm
Macro focus range
n/a
10 cm
Focal length
n/a
28 mm
Aperture priority
Max. aperture
n/a
f2.8 - f16
Metering types
Multi, Center-weighted, Average, Spot
Multi, Center-weighted, Spot
Exposure compensation
±5 EV (in 1/3 EV steps)
±4 EV (in 1/3 EV steps)
Shutter priority
Shutter speed (min)
30s
300s
Shutter speed (max)
1/32000s
1/4000s
Built-in flash
External flash
Viewfinder type
Electronic and Optical (tunnel)
Optical (optional)
White balance
7
10
Screen size
3"
3"
Screen resolution
1,620,000 dots
1,230,000 dots
Video available
Max. video resolution
4096x2160 (30p/​25p/​24p)
1920x1080 (30p/25p/24p)
Storage type
SD/SDHC/SDXC
SD/SDHC/SDXC
USB
USB 3.0 (5 GBit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless support
GPS
Battery
NP-W126S lithium-ion battery
Rechargeable Li-Ion battery DB-65
Weight
497g
251g
Body size
140.5 x 82.8 x 46.1 mm
117 x 63 x 35 mm
Released
2019
2015


Compare various cameras

vs

Diagonal

Diagonal is calculated by the use of Pythagorean theorem:
Diagonal =  w² + h²
where w = sensor width and h = sensor height

Fujifilm X-Pro3 diagonal

w = 23.50 mm
h = 15.60 mm
Diagonal =  23.50² + 15.60²   = 28.21 mm

Ricoh GR II diagonal

w = 23.60 mm
h = 15.70 mm
Diagonal =  23.60² + 15.70²   = 28.35 mm


Surface area

Surface area is calculated by multiplying the width and the height of a sensor.

X-Pro3 sensor area

Width = 23.50 mm
Height = 15.60 mm

Surface area = 23.50 × 15.60 = 366.60 mm²

GR II sensor area

Width = 23.60 mm
Height = 15.70 mm

Surface area = 23.60 × 15.70 = 370.52 mm²


Pixel pitch

Pixel pitch is the distance from the center of one pixel to the center of the next measured in micrometers (µm). It can be calculated with the following formula:
Pixel pitch =   sensor width in mm  × 1000
sensor resolution width in pixels

X-Pro3 pixel pitch

Sensor width = 23.50 mm
Sensor resolution width = 6277 pixels
Pixel pitch =   23.50  × 1000  = 3.74 µm
6277

GR II pixel pitch

Sensor width = 23.60 mm
Sensor resolution width = 4929 pixels
Pixel pitch =   23.60  × 1000  = 4.79 µm
4929


Pixel area

The area of one pixel can be calculated by simply squaring the pixel pitch:
Pixel area = pixel pitch²

You could also divide sensor surface area with effective megapixels:
Pixel area =   sensor surface area in mm²
effective megapixels

X-Pro3 pixel area

Pixel pitch = 3.74 µm

Pixel area = 3.74² = 13.99 µm²

GR II pixel area

Pixel pitch = 4.79 µm

Pixel area = 4.79² = 22.94 µm²


Pixel density

Pixel density can be calculated with the following formula:
Pixel density =  ( sensor resolution width in pixels)² / 1000000
sensor width in cm

One could also use this formula:
Pixel density =   effective megapixels × 1000000 / 10000
sensor surface area in mm²

X-Pro3 pixel density

Sensor resolution width = 6277 pixels
Sensor width = 2.35 cm

Pixel density = (6277 / 2.35)² / 1000000 = 7.13 MP/cm²

GR II pixel density

Sensor resolution width = 4929 pixels
Sensor width = 2.36 cm

Pixel density = (4929 / 2.36)² / 1000000 = 4.36 MP/cm²


Sensor resolution

Sensor resolution is calculated from sensor size and effective megapixels. It's slightly higher than maximum (not interpolated) image resolution which is usually stated on camera specifications. Sensor resolution is used in pixel pitch, pixel area, and pixel density formula. For sake of simplicity, we're going to calculate it in 3 stages.

1. First we need to find the ratio between horizontal and vertical length by dividing the former with the latter (aspect ratio). It's usually 1.33 (4:3) or 1.5 (3:2), but not always.

2. With the ratio (r) known we can calculate the X from the formula below, where X is a vertical number of pixels:
(X × r) × X = effective megapixels × 1000000    →   
X =  effective megapixels × 1000000
r
3. To get sensor resolution we then multiply X with the corresponding ratio:

Resolution horizontal: X × r
Resolution vertical: X

X-Pro3 sensor resolution

Sensor width = 23.50 mm
Sensor height = 15.60 mm
Effective megapixels = 26.10
r = 23.50/15.60 = 1.51
X =  26.10 × 1000000  = 4157
1.51
Resolution horizontal: X × r = 4157 × 1.51 = 6277
Resolution vertical: X = 4157

Sensor resolution = 6277 x 4157

GR II sensor resolution

Sensor width = 23.60 mm
Sensor height = 15.70 mm
Effective megapixels = 16.20
r = 23.60/15.70 = 1.5
X =  16.20 × 1000000  = 3286
1.5
Resolution horizontal: X × r = 3286 × 1.5 = 4929
Resolution vertical: X = 3286

Sensor resolution = 4929 x 3286


Crop factor

Crop factor or focal length multiplier is calculated by dividing the diagonal of 35 mm film (43.27 mm) with the diagonal of the sensor.
Crop factor =   43.27 mm
sensor diagonal in mm


X-Pro3 crop factor

Sensor diagonal in mm = 28.21 mm
Crop factor =   43.27  = 1.53
28.21

GR II crop factor

Sensor diagonal in mm = 28.35 mm
Crop factor =   43.27  = 1.53
28.35

35 mm equivalent aperture

Equivalent aperture (in 135 film terms) is calculated by multiplying lens aperture with crop factor (a.k.a. focal length multiplier).

X-Pro3 equivalent aperture

Aperture is a lens characteristic, so it's calculated only for fixed lens cameras. If you want to know the equivalent aperture for Fujifilm X-Pro3, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Fujifilm X-Pro3 is 1.53

GR II equivalent aperture

Crop factor = 1.53
Aperture = f2.8 - f16

35-mm equivalent aperture = (f2.8 - f16) × 1.53 = f4.3 - f24.5

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